1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.googlecode.android_scripting.widget; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.KeyEvent; 22 import android.view.MotionEvent; 23 import android.widget.ImageButton; 24 25 import com.googlecode.android_scripting.R; 26 27 /** 28 * This class exists purely to cancel long click events. 29 */ 30 public class NumberPickerButton extends ImageButton { 31 32 private NumberPicker mNumberPicker; 33 NumberPickerButton(Context context, AttributeSet attrs, int defStyle)34 public NumberPickerButton(Context context, AttributeSet attrs, int defStyle) { 35 super(context, attrs, defStyle); 36 } 37 NumberPickerButton(Context context, AttributeSet attrs)38 public NumberPickerButton(Context context, AttributeSet attrs) { 39 super(context, attrs); 40 } 41 NumberPickerButton(Context context)42 public NumberPickerButton(Context context) { 43 super(context); 44 } 45 setNumberPicker(NumberPicker picker)46 public void setNumberPicker(NumberPicker picker) { 47 mNumberPicker = picker; 48 } 49 50 @Override onTouchEvent(MotionEvent event)51 public boolean onTouchEvent(MotionEvent event) { 52 cancelLongpressIfRequired(event); 53 return super.onTouchEvent(event); 54 } 55 56 @Override onTrackballEvent(MotionEvent event)57 public boolean onTrackballEvent(MotionEvent event) { 58 cancelLongpressIfRequired(event); 59 return super.onTrackballEvent(event); 60 } 61 62 @Override onKeyUp(int keyCode, KeyEvent event)63 public boolean onKeyUp(int keyCode, KeyEvent event) { 64 if ((keyCode == KeyEvent.KEYCODE_DPAD_CENTER) || (keyCode == KeyEvent.KEYCODE_ENTER)) { 65 cancelLongpress(); 66 } 67 return super.onKeyUp(keyCode, event); 68 } 69 cancelLongpressIfRequired(MotionEvent event)70 private void cancelLongpressIfRequired(MotionEvent event) { 71 if ((event.getAction() == MotionEvent.ACTION_CANCEL) 72 || (event.getAction() == MotionEvent.ACTION_UP)) { 73 cancelLongpress(); 74 } 75 } 76 cancelLongpress()77 private void cancelLongpress() { 78 if (R.id.increment == getId()) { 79 mNumberPicker.cancelIncrement(); 80 } else if (R.id.decrement == getId()) { 81 mNumberPicker.cancelDecrement(); 82 } 83 } 84 } 85